BS EN 60695-11-10 / IEC 60695-11-10 method A2022-09-16T10:00:35+01:00

BS EN 60695-11-10 / IEC 60695-11-10 method A

A horizontal test rate of burning and/or extent and time of burning of plastics in a horizontal position classification provided: HB, HB40 and HB75.

Specimen conditioning: Condition the specimens at 230C and relative humidity 50% for minimum of 48 hours.

Gas flow: Set the methane gas flow to 105 ml/min. Adjust the flow and air intakes of the burner to get a clean blue flame 20mm high.

Flame application: 20mm Bunsen burner flame.

Flame application time: 30 seconds. If the flame front reaches the first 25mm mark within 30 seconds the flame application is discontinued.

Measurements:

A – Whether the flame passed the 25mm mark.

B – Whether the flame passed the 100mm mark.

C – The elapsed time between 25mm and 100mm mark, if the flame passed the 100mm mark.

L – The damaged length between the 25mm and 100 mm mark.

V – The calculated liner burning rate in mm/min.

BS EN 60695-11-10 / IEC 60695-11-10 method A

Based on the measured values use the following table to classify the material as HB, HB40 and HB75.

 

BS EN 60695-11-10 / IEC 60695-11-10 method A

Test setup: The Bunsen Burner and the test specimen is set up as shown in the test schematic.

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Les Rose

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